Photocatalytic activity of anatase-nickel ferrite heterostructures

Andris Šutka; Martins Millers; Nicola Döbelin; Rainer Pärna; Martins Vanags; Mihael Maiorov; Janis Kleperis; Tanel Käämbre; Urmas Joost; Ergo Nõmmiste; Vambola Kisand; Maris Knite

doi:10.1002/pssa.201431681

Photocatalytic activity of anatase-nickel ferrite heterostructures

Andris Šutka^*
, Martins Millers
, Nicola Döbelin
, Rainer Pärna
, Martins Vanags
, Mihael Maiorov
, Janis Kleperis
, Tanel Käämbre
, Urmas Joost
, Ergo Nõmmiste
, Vambola Kisand
, Maris Knite

^*Šī darba korespondējošais autors

Riga Technical University
University of Tartu
RMS Foundation
Estonian Nanotechnology Competence Center

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

19 Atsauces (Scopus)

Kopsavilkums

The simple co-precipitation route was used to couple commercial TiO₂ anatase nanopowder with nickel ferrite (NiFe₂O₄). The morphology and the crystalline structure of composite nanoparticles were characterised by TEM, N₂ adsorption-desorption, XRD and Rietveld refinement, XPS and XAS. The optical and magnetic properties were investigated. After co-precipitation NiFe₂O₄ nanoparticles, composed of spinel ferrite crystal phase, were formed on the surface of TiO₂ anatase nanopowder. The TiO₂/NiFe₂O₄ composite oxide demonstrated large specific surface area, high visible light absorption efficiency and efficient charge carrier separation, compared to pristine anatase TiO₂ or pristine NiFe₂O₄, representatively. The obtained TiO₂/NiFe₂O₄ composite oxides, with different nickel ferrite contents (5, 10, 25, 50 and 75 wt%) showed decent visible light photocatalytic efficiency, up to three times higher than pure anatase or pure NiFe₂O₄. However, TiO₂/NiFe₂O₄ composite oxides did not demonstrate high magnetic properties.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	796-803
Lapu skaits	8
Žurnāls	Physica Status Solidi (A) Applications and Materials Science
Sējums	212
Izdevuma numurs	4
DOIs	https://doi.org/10.1002/pssa.201431681
Publikācijas statuss	Publicēts - 1 apr. 2015

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title = "Photocatalytic activity of anatase-nickel ferrite heterostructures",

abstract = "The simple co-precipitation route was used to couple commercial TiO2 anatase nanopowder with nickel ferrite (NiFe2O4). The morphology and the crystalline structure of composite nanoparticles were characterised by TEM, N2 adsorption-desorption, XRD and Rietveld refinement, XPS and XAS. The optical and magnetic properties were investigated. After co-precipitation NiFe2O4 nanoparticles, composed of spinel ferrite crystal phase, were formed on the surface of TiO2 anatase nanopowder. The TiO2/NiFe2O4 composite oxide demonstrated large specific surface area, high visible light absorption efficiency and efficient charge carrier separation, compared to pristine anatase TiO2 or pristine NiFe2O4, representatively. The obtained TiO2/NiFe2O4 composite oxides, with different nickel ferrite contents (5, 10, 25, 50 and 75 wt\%) showed decent visible light photocatalytic efficiency, up to three times higher than pure anatase or pure NiFe2O4. However, TiO2/NiFe2O4 composite oxides did not demonstrate high magnetic properties.",

keywords = "anatase, ferrite, heterostructure, photocatalyst, TiO<inf>2</inf>",

author = "Andris {\v S}utka and Martins Millers and Nicola D{\"o}belin and Rainer P{\"a}rna and Martins Vanags and Mihael Maiorov and Janis Kleperis and Tanel K{\"a}{\"a}mbre and Urmas Joost and Ergo N{\~o}mmiste and Vambola Kisand and Maris Knite",

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year = "2015",

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doi = "10.1002/pssa.201431681",

language = "English",

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journal = "Physica Status Solidi (A) Applications and Materials Science",

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publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Photocatalytic activity of anatase-nickel ferrite heterostructures

AU - Šutka, Andris

AU - Millers, Martins

AU - Döbelin, Nicola

AU - Pärna, Rainer

AU - Vanags, Martins

AU - Maiorov, Mihael

AU - Kleperis, Janis

AU - Käämbre, Tanel

AU - Joost, Urmas

AU - Nõmmiste, Ergo

AU - Kisand, Vambola

AU - Knite, Maris

PY - 2015/4/1

Y1 - 2015/4/1

N2 - The simple co-precipitation route was used to couple commercial TiO2 anatase nanopowder with nickel ferrite (NiFe2O4). The morphology and the crystalline structure of composite nanoparticles were characterised by TEM, N2 adsorption-desorption, XRD and Rietveld refinement, XPS and XAS. The optical and magnetic properties were investigated. After co-precipitation NiFe2O4 nanoparticles, composed of spinel ferrite crystal phase, were formed on the surface of TiO2 anatase nanopowder. The TiO2/NiFe2O4 composite oxide demonstrated large specific surface area, high visible light absorption efficiency and efficient charge carrier separation, compared to pristine anatase TiO2 or pristine NiFe2O4, representatively. The obtained TiO2/NiFe2O4 composite oxides, with different nickel ferrite contents (5, 10, 25, 50 and 75 wt%) showed decent visible light photocatalytic efficiency, up to three times higher than pure anatase or pure NiFe2O4. However, TiO2/NiFe2O4 composite oxides did not demonstrate high magnetic properties.

AB - The simple co-precipitation route was used to couple commercial TiO2 anatase nanopowder with nickel ferrite (NiFe2O4). The morphology and the crystalline structure of composite nanoparticles were characterised by TEM, N2 adsorption-desorption, XRD and Rietveld refinement, XPS and XAS. The optical and magnetic properties were investigated. After co-precipitation NiFe2O4 nanoparticles, composed of spinel ferrite crystal phase, were formed on the surface of TiO2 anatase nanopowder. The TiO2/NiFe2O4 composite oxide demonstrated large specific surface area, high visible light absorption efficiency and efficient charge carrier separation, compared to pristine anatase TiO2 or pristine NiFe2O4, representatively. The obtained TiO2/NiFe2O4 composite oxides, with different nickel ferrite contents (5, 10, 25, 50 and 75 wt%) showed decent visible light photocatalytic efficiency, up to three times higher than pure anatase or pure NiFe2O4. However, TiO2/NiFe2O4 composite oxides did not demonstrate high magnetic properties.

KW - anatase

KW - ferrite

KW - heterostructure

KW - photocatalyst

KW - TiO<inf>2</inf>

UR - https://www.scopus.com/pages/publications/84927516604

U2 - 10.1002/pssa.201431681

DO - 10.1002/pssa.201431681

M3 - Article

AN - SCOPUS:84927516604

SN - 1862-6300

VL - 212

SP - 796

EP - 803

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 4

ER -

Photocatalytic activity of anatase-nickel ferrite heterostructures

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